Spudding jack



' s. BuLLuM AND W.l0. MAXWELL.'

. SPUDDING JACK. APPLICATION FILED 53.12. 1919.

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s. BULLUM AND w. o. MAXWELL.

sPuDmNG JACK. n APPL'lcATlou man naa. 12. 191s.

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`TounZZ whom 'it 'may concern:

UNITED s'IEvEBULLUM ANL .WILa-.IAIxIot .MAXIELIL or Los ANVeLEs'IGLIFoRNIA...

Be it known that We,- STEVEUBLIM Aand WILLIAM O. MAXWELL, citizens of the United this invention arerz'zx:

First: a shock absorbing. device between@ States, residing Vat Los Angeles, vin the county of Los Angeles and State `of California, have invented new and useful Improvements in- Spudding Jacks, of which the following isa specification. r

Our objeet'v isto make` a spudding jack,.

andour invention consists ofthe novelieaitures herein shown, described and claimed. 'fr'The' .principali objects toV be..` attained by the Apoint at which the power Lis applied (band Wheel crank) andftheotherportions of the'rig and machinery. f It has been cus-V tomary'heretofore to'use, instead of aideviee oftlns nature,.a section of manila vor Wirecable', called a jerk line, which was connect-f ed With the band Wheel crank by` means cfa collar commonly known: as a spudding ring,"

and thence extending in one solid piece'to a connection with a spudding shoe ywhich was fitted to the .drilling cable. This jerk line device Wasanchored down to the rig foundation at the same point as the anchor connection shown in vthis application, except that for this purpose a section of cable IvasusedV instead otthexhoolrrod and eyeboltas specified herein. :So longas a maniladrilling cable was used yforspudding the Well. in or- A getting the hole started there were no serious objections'to the old-*jerk line method asthe manila drilling cable* allo-Wed. for suiicient Vspring or giveto'absorb a large :pai-tof the shoclrresulting from the drilling motion.-

.g However, manila` drilling cable-shave now gone outo general use in Well drilling work,

giving vWayto steel: Wire cablef which is much more rigidin its reaction fromca shock such as results from a drilling motion. This Y rigidity'and resultant shockv isvery severe on the mechanical construction of the drilling.- machinery generally, L and one otfthe principal objects of' ourI device is to take this shock from therig vby means of a shock absorbing spring. l .i v Second: the'wheel device 14C rolls or turns While in lContact with the drilling table,

which feature We claimto be an improv'e-` ment over the /spudding shoe `method .now

5 in-common` use and Which required the 'drill-H Slieciicatiron `of Letters fatent. i

- indicatedby thearrevvl in Fig. 2. `v

Y ing cable to slide againstftheiace of 'i '1 -Q55 Figure 1 is aside' elevation 'of 'a Well-rig' '21 Y l -Fga 4 is anenlarged sectional ole'tailfon.y

iFigfisatop plan view of the interme-l dlatefj oint as'seen looking-inthe `direction The:V drill'. or spuddng tool sY connectedto the lovverend Vofl the rope 1 dovvnin the Well` 2', and the rope 1. runs over. the guide pulley".

3 at the top of the derrick and down and is Y y ratntedMar. 14,1922.; Application iiieri'rebrary 12;19'19; 'si-:riallivm 296,693. Y 1- attachedto. and Wound upon thefibullwheel 4. #A' bandwheel Sis mounted upon a -shaft v6, and a crank arm 7jis iiXedupon one end of Y Vthe shaft 6.` Acrankpin 8 vis tiXed'in' the crank. arm 7' and-agrooved` roller9 is' mountedruponfthe crank pin. The spudding :jack

1j() connects the roller'9 Vto the "downwardly extending portion 11 of the rope so that as the band wheel 5 rotates the jack is operated.v topullthe/portion l11 A-Of'jthe rope to raise and lower the-drill or spudding tool.

A bar .12 has-a bearing arm 13 offset and extendingfirom its outer end. A grooved pulv ley-(111 fits` against-the inner face' of th'ejbear-` ing -15at the" outerlend 4of thearm 133, are- Inovable arm 116' haslan'oiiset portion 17 it-k tinglagainst the straight'portion ofthe'bar V12,'an'd-,a'vloearing 18 at its opposite erich-said bearingflS:fitting` against thepulley 14.'

bolt: 19 vconnects the y'offset .portion 1f(V st-.the

through the bearing 18 and through thefp'ul-` ley'lltandY-through the bearing 15, there be-V n 'land' a Cotter 9.4 is inserted througl'i'the head ,ing afshoulder 21 upon-the pin to holdthe f When'it is desiredto place the portion'll ofV the-ropein the passager-25 between the arms and 16 against the-pulley 14j, thecotteit-.Mis removed, the nut 26' is screwedoutvbackwardly and the bearing 18 lplaced upon the headi23andthe nut; 26 tightened.

At the opposite'end of the bar 12 frolnthe pulley ,14 arms 27 and 28 are made to form abifurcated bearing, and the extension arm 29feXtends-'fointhe arni'28- and has a' hook" 30 upon its extreme end-gf The rod 311;.isf

mounted in the bifurcation between the arms 27i and 28V in line with the.' hook 30.* The anchor rod 32 has a bifurcatedbearing33iat itsY upper end to stratldle the arms4 27 and 28, and apivot pin34V is inserted through the bearing 33 i through the arms 27 andi 28 and through the rod 31. The" hook 30 swingsf downwardly fromf'theA rod 31v and will not pass upwardly beyond the rod; A' hookl 35 is formed at the lower end of the anchor rod 32. 'An eye bolt 36 isiast'ened inthe sill` 37,= and the hook 35 engages the eye ofthe Y,boltl 36 so as to limit the upward swing of the rods-'12 and 31;- An eyelbolt 38 is inserted tlirough'the post 39 and a hook 40- is connected to vtheeye bolt to swing upwardly andengage the hookl 30 when desire'd;V Y A Af crosshead 41 is 'mountedupon theop; posite end of the bar 31 from the joint, aI spring 42 is -rnountedupoi'ifthe bar 31 againstv theY cr`osshe'ad-41, a" second crosshead 43 is y slidinglymounted uponl theV bar 31 againstr the spring, and a U-shape'd yoke'havingla central portion 44- and side bars 45A and46 is mounted with thev side barsv 45 and 46 sliding. through the crosshead 41V andv ex tending through the crosshead 43 with nuts 47 and w48 upon the ends of' theside bars 45vand 46 `against the crosshead' 43.

.The tension ofl the spring 42 is eixertedi to pressa the cr'ossheads 41 and 43 apart.- The'circular central portion 44 engages the groovedroller 9, andthe tension upon the rope liand the tension of the spring 42i's" exerted to hold this cu-rvedf central portion 44 in the groove whenthe .bandwheel is' running. When the'- parts are moved to proper position the hook 40,1nay'be swung upwardly to'engage the hook.v 3l); tlien .the

wheel started thetension on'the'Y hook'40will' be released andthe hook 40 will fall; Con: tinued operation of the` band wheel will make a bend in the portion 11 of the rope at each revolutionr of the band wheelthereby raising the?l drill or spliddingtool andithen i the .rope will straighten and allow the tool tofall. YV i Tlie anclorod 32'hold`s t e bars'12'and 31 from; vibrating upanddown and makes a steady'pull on the bar 12' at a practically steady angle. The spring 42 serves as a shock" absorber and makes ia yielding com nection betweenithe crank pin 7 and the rope portion 11.

Our spudding jaekvtakesltheplacesotiie rope usuallyemployed.l

The principal object of our spnddingja'cl is?- to7 .provide a shock f absorbing connection between thef band' wheel and the rope. The

rigid' connections :heretofore in usehavef been short lived on account off their rigidity and this fault has not only made thefconne'ction sliort lived; but it lias madey thefoperation noisyl and objectionable and injurious to 1 the-'other partsof'therig; v

, Various changes may be made-` without departing from' the spiritxof our" invention asvclaim'ed f l ,1.V A= spudding jack comprising a' pulley adaptedl to-run upona ropepa bar extending from the-'pulley5l a second bar hinged to the first bar, anfanclior rod pivotally connected at' its' upper end to the hinge joint between said bars; thelower endv of'said anchor'rod being pivotally connected to fixed partE of the derrickl, a crosshead'xed u'pon the-oppo;

site' end of the secondi bar from the vhinge joint,-a second cr'o's'shead slidingly'` mounted l upon the=seco`nd= bar, a 'spring' betweenythe crossheads,VV and' means lor connecting the sliding crosshead to thecrank vpinfof` aiband wheel; j j 'i' Y 2; A'A -spudding jack vcomprisingVv apair of rodshingedV to each-other at their inner ends,y an extension on thefinner endoffone off said rods-for engaging thefo'pposit'e" rod to'ilimitl the' upwar'dfmo'vernent yof'the/thinged ends of; said rodsl af pulley Vcarried by the outer end-*ofi one Vof.' therods,V a1 loop yield# ingly mounted'on the outer end' of the other rod, a` spring. for resisting the outward movement; of? said' loop uponf said1 rodf, `and an anchoring rod pivotallyvfconnected tothe rods. n n 'l 3. A device for the purposefo'f imparting motion to drillingtoolsby means of aicon` nection from the crank' pin of aba'nd wheel hinge joint between the inner endsoffsai'd to the' cable'on'whichthe drilling toolsf-'are suspended',` comprisinga 'rolling wheeln [in Contact with the drilling cable," a' resilient connecting means Jfor the wristi pin of' the bandwheel, a jointed' rod connectingthe rolling vrwheel with' the connectingv means 'on' the wrist' pin, and a=separ`ate anchoring rod pivotally connected to=and extending down'- and anchored below said joint. the outerv end of the third rod..

'1,409,438 v v i 3 Wardly from the joint of the connecting rod of another onek of' the rods, and a hook datv 4. A spudding device for Well drilling fip-` In testimony whereof We have signed our -10 n paratus, comprising three rods hinged t0 names to this specification. w each other at their inner ends, a pulley jour- Y nailed at the outer end of one of said rods, '4 Y STEVE BULLUM.

a. yieldingly mounted loop at the outer end WM. O. MAXWELL. 

